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How do Google search engines work?? (Web crawler (Looks at webpages, and…
How do Google search engines work??
Algorithms
Takes your questions and turns them into answers.
Uses keywords in your search to find try and find what your searching for.
Computer programs that look for clues to try and find exactly what your looking for.
Has more than 200 specific clues to find what you might be looking for.
Your region and PageRank.
PageRank is how Google finds out the page's relevance.
Freshness of Content.
Terms on websites.
Used to satisfy legal disclosure obligations.
Grant users the right to use website materials.
Structure the legal relationships between the website operators and it's users.
Spam
They fight spam by using algorithms and manual review.
Algorithms dedect most of the spam and delete it.
Any spam the algorithms don't get rid of, teams on Google do.
Spam tries to get themselves to the top of the search results
Uses as many keywords as possible.
Buys links that go through PageRank.
Puts invisible text in screen
Bad for websites that are actually relevant.
Bad for website owneers because their websites become harder to find.
Web crawler
Looks at webpages, and follows links.
Go from link to link to bring the info the webpages back to Google's servers.
Visits some websites more than others.
Main purpose is for web indexing.
Indexes throughout the web to find needed websites.
Takes from 4 days to 4 weeks to index something.
A software system that searches the worldwide web.
Many real websites use webcrawler for updating.
Mostly search engines
Google's search results page.
Google Ad-words.
Payed a certain amount of money every time somebody clicks on your ad.
The pay depends on if the keywords you had bid on were used in the search
Operates on a PPC basis.
Product listing ads
Showed when the user searches a specific product or type of product.
Operates on a PPC basis.
You have to pay money to list your product
The Answer box
When your link is in the answer box, that means that your link was most relevant to the question asked.